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TI-2023-21396 Aliases CVE-2023-40598GHSA-5ghx-2vfx-7347

Command Injection in Splunk Enterprise Using External Lookups

Priority MEDIUM 42CWE-77Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution, Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-77 and CWE-306.

Summary

In Splunk Enterprise versions below 8.2.12, 9.0.6, and 9.1.1, an attacker can create an external lookup that calls a legacy internal function. The attacker can use this internal function to insert code into the Splunk platform installation directory. From there, a user can execute arbitrary code on the Splunk platform Instance.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00852 58th percentileScored 2026-11-07
Fix Fixed Splunk Enterprise (Splunk): 8.2.12, 9.0.6, 9.1.1Splunk Cloud (Splunk): 9.0.2305.200

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
SplunkSplunk Enterprise8.2 to before 8.2.12; 9.0 to before 9.0.6; 9.1 to before 9.1.18.2.12, 9.0.6, 9.1.1Patch availableCNA
SplunkSplunk Cloud- to before 9.0.2305.2009.0.2305.200Patch availableCNA
  • Splunk Enterprise VendorSplunk Affected 8.2 to before 8.2.12; 9.0 to before 9.0.6; 9.1 to before 9.1.1 Fixed in 8.2.12, 9.0.6, 9.1.1 Patch available CNA
  • Splunk Cloud VendorSplunk Affected - to before 9.0.2305.200 Fixed in 9.0.2305.200 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*before 8.2.12; 9.0.0 to before 9.0.6; 9.1.0 to before 9.1.1VulnerableSplunk
cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:*before 9.0.2305.200VulnerableSplunk
  • cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:* Versions before 8.2.12; 9.0.0 to before 9.0.6; 9.1.0 to before 9.1.1 Vulnerable ·Splunk
  • cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:* Versions before 9.0.2305.200 Vulnerable ·Splunk

Remediation

  • Fix · CNA Splunk Enterprise (Splunk) Fixed in 8.2.12, 9.0.6, 9.1.1
  • Fix · CNA Splunk Cloud (Splunk) Fixed in 9.0.2305.200

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Splunk Enterprise 8.2.12, 9.0.6, 9.1.1

    6 records Highest priority Priority MEDIUM 3 MEDIUM, 3 LOW

    Other records, highest priority first

    • TI-2023-21395 Absolute Path Traversal in Splunk Enterprise Using runshellscript.pyPriority MEDIUM 40
    • TI-2023-21393 Remote Code Execution via Serialized Session PayloadPriority MEDIUM 40
    • TI-2023-21394 Splunk Enterprise on Windows Privilege Escalation due to Insecure OPENSSLDIR Build Definition Reference in DLLPriority LOW 39
    Show all 6 records →
  • Release ·

    Splunk Cloud 9.0.2305.200

    4 records Highest priority Priority MEDIUM 3 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2023-21395 Absolute Path Traversal in Splunk Enterprise Using runshellscript.pyPriority MEDIUM 40
    • TI-2023-21393 Remote Code Execution via Serialized Session PayloadPriority MEDIUM 40
    • TI-2023-21390 Reflected Cross-site Scripting (XSS) on "/app/search/table" web endpointPriority LOW 39
    Show all 4 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-40598
  2. 2026-10-03 Alias added: GHSA-5ghx-2vfx-7347

References

Advisory 2

  • TI-2026-16444 Unauthenticated Arbitrary File Creation and Truncation in a PostgreSQL Sidecar Service Endpoint in Splunk Enterprise KEVCVSS 3.1CRITICAL 9.8
  • TI-2014-00154 The (1) TLS and (2) DTLS implementations in OpenSSL 1.0.1 before 1.0.1g do not properly… KEVCVSS 3.1HIGH 7.5
  • TI-2023-24841 Remote code execution (RCE) in Splunk Enterprise through Insecure XML Parsing CVSS 3.1HIGH 8.8
  • TI-2023-15979 ‘edit_user’ Capability Privilege Escalation CVSS 3.1HIGH 8.8
  • TI-2024-30707 Remote Code Execution (RCE) due to insecure session storage configuration in Splunk Enterprise on Windows CVSS 3.1HIGH 8.8
  • TI-2022-21345 Reflected Cross-Site Scripting via the radio template in Splunk Enterprise CVSS 3.1HIGH 8.8
See all 297 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences